What position did Mike Piazza primarily play?

What uniform number did Steve Carlton wear with the Phillies? What position did Tom Seaver primarily play? Tom Seaver is best known for playing with which MLB team? What uniform number did Tom Seaver wear with the Mets? Mike Piazza is best known for playing with which MLB team? What uniform number did Mike Piazza wear with the Mets? What position did Dwight Gooden primarily play? Dwight Gooden is best known for playing with which MLB team?